Question

A concave lens of the focal 15 forms an image 10 cm from the lens calculate the magnifying

Answer 1

Answer:

magnification =5/3

Explanation:

applying sign convention

f= -15cm

v=10cm

we know that

1/f=1/v-1/u

1/-15=1/10-1/u

1/u=1/10+1/15

1/u=5/30

1/u=1/6

u=6cm

magnification = v/u=10/6=5/3